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-# Design System Inspired by Apple
+# Design System Inspired by Vercel
 
 ## 1. Visual Theme & Atmosphere
 
-Apple's website is a masterclass in controlled drama — vast expanses of pure black and near-white serve as cinematic backdrops for products that are photographed as if they were sculptures in a gallery. The design philosophy is reductive to its core: every pixel exists in service of the product, and the interface itself retreats until it becomes invisible. This is not minimalism as aesthetic preference; it is minimalism as reverence for the object.
+Vercel's website is the visual thesis of developer infrastructure made invisible — a design system so restrained it borders on philosophical. The page is overwhelmingly white (`#ffffff`) with near-black (`#171717`) text, creating a gallery-like emptiness where every element earns its pixel. This isn't minimalism as decoration; it's minimalism as engineering principle. The Geist design system treats the interface like a compiler treats code — every unnecessary token is stripped away until only structure remains.
 
-The typography anchors everything. San Francisco (SF Pro Display for large sizes, SF Pro Text for body) is Apple's proprietary typeface, engineered with optical sizing that automatically adjusts letterforms depending on point size. At display sizes (56px), weight 600 with a tight line-height of 1.07 and subtle negative letter-spacing (-0.28px) creates headlines that feel machined rather than typeset — precise, confident, and unapologetically direct. At body sizes (17px), the tracking loosens slightly (-0.374px) and line-height opens to 1.47, creating a reading rhythm that is comfortable without ever feeling slack.
+The custom Geist font family is the crown jewel. Geist Sans uses aggressive negative letter-spacing (-2.4px to -2.88px at display sizes), creating headlines that feel compressed, urgent, and engineered — like code that's been minified for production. At body sizes, the tracking relaxes but the geometric precision persists. Geist Mono completes the system as the monospace companion for code, terminal output, and technical labels. Both fonts enable OpenType `"liga"` (ligatures) globally, adding a layer of typographic sophistication that rewards close reading.
 
-The color story is starkly binary. Product sections alternate between pure black (`#000000`) backgrounds with white text and light gray (`#f5f5f7`) backgrounds with near-black text (`#1d1d1f`). This creates a cinematic pacing — dark sections feel immersive and premium, light sections feel open and informational. The only chromatic accent is Apple Blue (`#0071e3`), reserved exclusively for interactive elements: links, buttons, and focus states. This singular accent color in a sea of neutrals gives every clickable element unmistakable visibility.
+What distinguishes Vercel from other monochrome design systems is its shadow-as-border philosophy. Instead of traditional CSS borders, Vercel uses `box-shadow: 0px 0px 0px 1px rgba(0,0,0,0.08)` — a zero-offset, zero-blur, 1px-spread shadow that creates a border-like line without the box model implications. This technique allows borders to exist in the shadow layer, enabling smoother transitions, rounded corners without clipping, and a subtler visual weight than traditional borders. The entire depth system is built on layered, multi-value shadow stacks where each layer serves a specific purpose: one for the border, one for soft elevation, one for ambient depth.
 
 **Key Characteristics:**
-- SF Pro Display/Text with optical sizing — letterforms adapt automatically to size context
-- Binary light/dark section rhythm: black (`#000000`) alternating with light gray (`#f5f5f7`)
-- Single accent color: Apple Blue (`#0071e3`) reserved exclusively for interactive elements
-- Product-as-hero photography on solid color fields — no gradients, no textures, no distractions
-- Extremely tight headline line-heights (1.07-1.14) creating compressed, billboard-like impact
-- Full-width section layout with centered content — the viewport IS the canvas
-- Pill-shaped CTAs (980px radius) creating soft, approachable action buttons
-- Generous whitespace between sections allowing each product moment to breathe
+- Geist Sans with extreme negative letter-spacing (-2.4px to -2.88px at display) — text as compressed infrastructure
+- Geist Mono for code and technical labels with OpenType `"liga"` globally
+- Shadow-as-border technique: `box-shadow 0px 0px 0px 1px` replaces traditional borders throughout
+- Multi-layer shadow stacks for nuanced depth (border + elevation + ambient in single declarations)
+- Near-pure white canvas with `#171717` text — not quite black, creating micro-contrast softness
+- Workflow-specific accent colors: Ship Red (`#ff5b4f`), Preview Pink (`#de1d8d`), Develop Blue (`#0a72ef`)
+- Focus ring system using `hsla(212, 100%, 48%, 1)` — a saturated blue for accessibility
+- Pill badges (9999px) with tinted backgrounds for status indicators
 
 ## 2. Color Palette & Roles
 
 ### Primary
-- **Pure Black** (`#000000`): Hero section backgrounds, immersive product showcases. The darkest canvas for the brightest products.
-- **Light Gray** (`#f5f5f7`): Alternate section backgrounds, informational areas. Not white — the slight blue-gray tint prevents sterility.
-- **Near Black** (`#1d1d1f`): Primary text on light backgrounds, dark button fills. Slightly warmer than pure black for comfortable reading.
+- **Vercel Black** (`#171717`): Primary text, headings, dark surface backgrounds. Not pure black — the slight warmth prevents harshness.
+- **Pure White** (`#ffffff`): Page background, card surfaces, button text on dark.
+- **True Black** (`#000000`): Secondary use, `--geist-console-text-color-default`, used in specific console/code contexts.
+
+### Workflow Accent Colors
+- **Ship Red** (`#ff5b4f`): `--ship-text`, the "ship to production" workflow step — warm, urgent coral-red.
+- **Preview Pink** (`#de1d8d`): `--preview-text`, the preview deployment workflow — vivid magenta-pink.
+- **Develop Blue** (`#0a72ef`): `--develop-text`, the development workflow — bright, focused blue.
+
+### Console / Code Colors
+- **Console Blue** (`#0070f3`): `--geist-console-text-color-blue`, syntax highlighting blue.
+- **Console Purple** (`#7928ca`): `--geist-console-text-color-purple`, syntax highlighting purple.
+- **Console Pink** (`#eb367f`): `--geist-console-text-color-pink`, syntax highlighting pink.
 
 ### Interactive
-- **Apple Blue** (`#0071e3`): `--sk-focus-color`, primary CTA backgrounds, focus rings. The ONLY chromatic color in the interface.
-- **Link Blue** (`#0066cc`): `--sk-body-link-color`, inline text links. Slightly darker than Apple Blue for text-level readability.
-- **Bright Blue** (`#2997ff`): Links on dark backgrounds. Higher luminance for contrast on black sections.
+- **Link Blue** (`#0072f5`): Primary link color with underline decoration.
+- **Focus Blue** (`hsla(212, 100%, 48%, 1)`): `--ds-focus-color`, focus ring on interactive elements.
+- **Ring Blue** (`rgba(147, 197, 253, 0.5)`): `--tw-ring-color`, Tailwind ring utility.
 
-### Text
-- **White** (`#ffffff`): Text on dark backgrounds, button text on blue/dark CTAs.
-- **Near Black** (`#1d1d1f`): Primary body text on light backgrounds.
-- **Black 80%** (`rgba(0, 0, 0, 0.8)`): Secondary text, nav items on light backgrounds. Slightly softened.
-- **Black 48%** (`rgba(0, 0, 0, 0.48)`): Tertiary text, disabled states, carousel controls.
+### Neutral Scale
+- **Gray 900** (`#171717`): Primary text, headings, nav text.
+- **Gray 600** (`#4d4d4d`): Secondary text, description copy.
+- **Gray 500** (`#666666`): Tertiary text, muted links.
+- **Gray 400** (`#808080`): Placeholder text, disabled states.
+- **Gray 100** (`#ebebeb`): Borders, card outlines, dividers.
+- **Gray 50** (`#fafafa`): Subtle surface tint, inner shadow highlight.
 
-### Surface & Dark Variants
-- **Dark Surface 1** (`#272729`): Card backgrounds in dark sections.
-- **Dark Surface 2** (`#262628`): Subtle surface variation in dark contexts.
-- **Dark Surface 3** (`#28282a`): Elevated cards on dark backgrounds.
-- **Dark Surface 4** (`#2a2a2d`): Highest dark surface elevation.
-- **Dark Surface 5** (`#242426`): Deepest dark surface tone.
+### Surface & Overlay
+- **Overlay Backdrop** (`hsla(0, 0%, 98%, 1)`): `--ds-overlay-backdrop-color`, modal/dialog backdrop.
+- **Selection Text** (`hsla(0, 0%, 95%, 1)`): `--geist-selection-text-color`, text selection highlight.
+- **Badge Blue Bg** (`#ebf5ff`): Pill badge background, tinted blue surface.
+- **Badge Blue Text** (`#0068d6`): Pill badge text, darker blue for readability.
 
-### Button States
-- **Button Active** (`#ededf2`): Active/pressed state for light buttons.
-- **Button Default Light** (`#fafafc`): Search/filter button backgrounds.
-- **Overlay** (`rgba(210, 210, 215, 0.64)`): Media control scrims, overlays.
-- **White 32%** (`rgba(255, 255, 255, 0.32)`): Hover state on dark modal close buttons.
-
-### Shadows
-- **Card Shadow** (`rgba(0, 0, 0, 0.22) 3px 5px 30px 0px`): Soft, diffused elevation for product cards. Offset and wide blur create a natural, photographic shadow.
+### Shadows & Depth
+- **Border Shadow** (`rgba(0, 0, 0, 0.08) 0px 0px 0px 1px`): The signature — replaces traditional borders.
+- **Subtle Elevation** (`rgba(0, 0, 0, 0.04) 0px 2px 2px`): Minimal lift for cards.
+- **Card Stack** (`rgba(0,0,0,0.08) 0px 0px 0px 1px, rgba(0,0,0,0.04) 0px 2px 2px, rgba(0,0,0,0.04) 0px 8px 8px -8px, #fafafa 0px 0px 0px 1px`): Full multi-layer card shadow.
+- **Ring Border** (`rgb(235, 235, 235) 0px 0px 0px 1px`): Light gray ring-border for tabs and images.
 
 ## 3. Typography Rules
 
 ### Font Family
-- **Display**: `SF Pro Display`, with fallbacks: `SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif`
-- **Body**: `SF Pro Text`, with fallbacks: `SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif`
-- SF Pro Display is used at 20px and above; SF Pro Text is optimized for 19px and below.
+- **Primary**: `Geist`, with fallbacks: `Arial, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol`
+- **Monospace**: `Geist Mono`, with fallbacks: `ui-monospace, SFMono-Regular, Roboto Mono, Menlo, Monaco, Liberation Mono, DejaVu Sans Mono, Courier New`
+- **OpenType Features**: `"liga"` enabled globally on all Geist text; `"tnum"` for tabular numbers on specific captions.
 
 ### Hierarchy
 
 | Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
 |------|------|------|--------|-------------|----------------|-------|
-| Display Hero | SF Pro Display | 56px (3.50rem) | 600 | 1.07 (tight) | -0.28px | Product launch headlines, maximum impact |
-| Section Heading | SF Pro Display | 40px (2.50rem) | 600 | 1.10 (tight) | normal | Feature section titles |
-| Tile Heading | SF Pro Display | 28px (1.75rem) | 400 | 1.14 (tight) | 0.196px | Product tile headlines |
-| Card Title | SF Pro Display | 21px (1.31rem) | 700 | 1.19 (tight) | 0.231px | Bold card headings |
-| Sub-heading | SF Pro Display | 21px (1.31rem) | 400 | 1.19 (tight) | 0.231px | Regular card headings |
-| Nav Heading | SF Pro Text | 34px (2.13rem) | 600 | 1.47 | -0.374px | Large navigation headings |
-| Sub-nav | SF Pro Text | 24px (1.50rem) | 300 | 1.50 | normal | Light sub-navigation text |
-| Body | SF Pro Text | 17px (1.06rem) | 400 | 1.47 | -0.374px | Standard reading text |
-| Body Emphasis | SF Pro Text | 17px (1.06rem) | 600 | 1.24 (tight) | -0.374px | Emphasized body text, labels |
-| Button Large | SF Pro Text | 18px (1.13rem) | 300 | 1.00 (tight) | normal | Large button text, light weight |
-| Button | SF Pro Text | 17px (1.06rem) | 400 | 2.41 (relaxed) | normal | Standard button text |
-| Link | SF Pro Text | 14px (0.88rem) | 400 | 1.43 | -0.224px | Body links, "Learn more" |
-| Caption | SF Pro Text | 14px (0.88rem) | 400 | 1.29 (tight) | -0.224px | Secondary text, descriptions |
-| Caption Bold | SF Pro Text | 14px (0.88rem) | 600 | 1.29 (tight) | -0.224px | Emphasized captions |
-| Micro | SF Pro Text | 12px (0.75rem) | 400 | 1.33 | -0.12px | Fine print, footnotes |
-| Micro Bold | SF Pro Text | 12px (0.75rem) | 600 | 1.33 | -0.12px | Bold fine print |
-| Nano | SF Pro Text | 10px (0.63rem) | 400 | 1.47 | -0.08px | Legal text, smallest size |
+| Display Hero | Geist | 48px (3.00rem) | 600 | 1.00–1.17 (tight) | -2.4px to -2.88px | Maximum compression, billboard impact |
+| Section Heading | Geist | 40px (2.50rem) | 600 | 1.20 (tight) | -2.4px | Feature section titles |
+| Sub-heading Large | Geist | 32px (2.00rem) | 600 | 1.25 (tight) | -1.28px | Card headings, sub-sections |
+| Sub-heading | Geist | 32px (2.00rem) | 400 | 1.50 | -1.28px | Lighter sub-headings |
+| Card Title | Geist | 24px (1.50rem) | 600 | 1.33 | -0.96px | Feature cards |
+| Card Title Light | Geist | 24px (1.50rem) | 500 | 1.33 | -0.96px | Secondary card headings |
+| Body Large | Geist | 20px (1.25rem) | 400 | 1.80 (relaxed) | normal | Introductions, feature descriptions |
+| Body | Geist | 18px (1.13rem) | 400 | 1.56 | normal | Standard reading text |
+| Body Small | Geist | 16px (1.00rem) | 400 | 1.50 | normal | Standard UI text |
+| Body Medium | Geist | 16px (1.00rem) | 500 | 1.50 | normal | Navigation, emphasized text |
+| Body Semibold | Geist | 16px (1.00rem) | 600 | 1.50 | -0.32px | Strong labels, active states |
+| Button / Link | Geist | 14px (0.88rem) | 500 | 1.43 | normal | Buttons, links, captions |
+| Button Small | Geist | 14px (0.88rem) | 400 | 1.00 (tight) | normal | Compact buttons |
+| Caption | Geist | 12px (0.75rem) | 400–500 | 1.33 | normal | Metadata, tags |
+| Mono Body | Geist Mono | 16px (1.00rem) | 400 | 1.50 | normal | Code blocks |
+| Mono Caption | Geist Mono | 13px (0.81rem) | 500 | 1.54 | normal | Code labels |
+| Mono Small | Geist Mono | 12px (0.75rem) | 500 | 1.00 (tight) | normal | `text-transform: uppercase`, technical labels |
+| Micro Badge | Geist | 7px (0.44rem) | 700 | 1.00 (tight) | normal | `text-transform: uppercase`, tiny badges |
 
 ### Principles
-- **Optical sizing as philosophy**: SF Pro automatically switches between Display and Text optical sizes. Display versions have wider letter spacing and thinner strokes optimized for large sizes; Text versions are tighter and sturdier for small sizes. This means the font literally changes its DNA based on context.
-- **Weight restraint**: The scale spans 300 (light) to 700 (bold) but most text lives at 400 (regular) and 600 (semibold). Weight 300 appears only on large decorative text. Weight 700 is rare, used only for bold card titles.
-- **Negative tracking at all sizes**: Unlike most systems that only track headlines, Apple applies subtle negative letter-spacing even at body sizes (-0.374px at 17px, -0.224px at 14px, -0.12px at 12px). This creates universally tight, efficient text.
-- **Extreme line-height range**: Headlines compress to 1.07 while body text opens to 1.47, and some button contexts stretch to 2.41. This dramatic range creates clear visual hierarchy through rhythm alone.
+- **Compression as identity**: Geist Sans at display sizes uses -2.4px to -2.88px letter-spacing — the most aggressive negative tracking of any major design system. This creates text that feels _minified_, like code optimized for production. The tracking progressively relaxes as size decreases: -1.28px at 32px, -0.96px at 24px, -0.32px at 16px, and normal at 14px.
+- **Ligatures everywhere**: Every Geist text element enables OpenType `"liga"`. Ligatures aren't decorative — they're structural, creating tighter, more efficient glyph combinations.
+- **Three weights, strict roles**: 400 (body/reading), 500 (UI/interactive), 600 (headings/emphasis). No bold (700) except for tiny micro-badges. This narrow weight range creates hierarchy through size and tracking, not weight.
+- **Mono for identity**: Geist Mono in uppercase with `"tnum"` or `"liga"` serves as the "developer console" voice — compact technical labels that connect the marketing site to the product.
 
 ## 4. Component Stylings
 
 ### Buttons
 
-**Primary Blue (CTA)**
-- Background: `#0071e3` (Apple Blue)
+**Primary White (Shadow-bordered)**
+- Background: `#ffffff`
+- Text: `#171717`
+- Padding: 0px 6px (minimal — content-driven width)
+- Radius: 6px (subtly rounded)
+- Shadow: `rgb(235, 235, 235) 0px 0px 0px 1px` (ring-border)
+- Hover: background shifts to `var(--ds-gray-1000)` (dark)
+- Focus: `2px solid var(--ds-focus-color)` outline + `var(--ds-focus-ring)` shadow
+- Use: Standard secondary button
+
+**Primary Dark (Inferred from Geist system)**
+- Background: `#171717`
 - Text: `#ffffff`
-- Padding: 8px 15px
-- Radius: 8px
-- Border: 1px solid transparent
-- Font: SF Pro Text, 17px, weight 400
-- Hover: background brightens slightly
-- Active: `#ededf2` background shift
-- Focus: `2px solid var(--sk-focus-color, #0071E3)` outline
-- Use: Primary call-to-action ("Buy", "Shop iPhone")
+- Padding: 8px 16px
+- Radius: 6px
+- Use: Primary CTA ("Start Deploying", "Get Started")
 
-**Primary Dark**
-- Background: `#1d1d1f`
-- Text: `#ffffff`
-- Padding: 8px 15px
-- Radius: 8px
-- Font: SF Pro Text, 17px, weight 400
-- Use: Secondary CTA, dark variant
+**Pill Button / Badge**
+- Background: `#ebf5ff` (tinted blue)
+- Text: `#0068d6`
+- Padding: 0px 10px
+- Radius: 9999px (full pill)
+- Font: 12px weight 500
+- Use: Status badges, tags, feature labels
 
-**Pill Link (Learn More / Shop)**
-- Background: transparent
-- Text: `#0066cc` (light bg) or `#2997ff` (dark bg)
-- Radius: 980px (full pill)
-- Border: 1px solid `#0066cc`
-- Font: SF Pro Text, 14px-17px
-- Hover: underline decoration
-- Use: "Learn more" and "Shop" links — the signature Apple inline CTA
-
-**Filter / Search Button**
-- Background: `#fafafc`
-- Text: `rgba(0, 0, 0, 0.8)`
-- Padding: 0px 14px
-- Radius: 11px
-- Border: 3px solid `rgba(0, 0, 0, 0.04)`
-- Focus: `2px solid var(--sk-focus-color, #0071E3)` outline
-- Use: Search bars, filter controls
-
-**Media Control**
-- Background: `rgba(210, 210, 215, 0.64)`
-- Text: `rgba(0, 0, 0, 0.48)`
-- Radius: 50% (circular)
-- Active: scale(0.9), background shifts
-- Focus: `2px solid var(--sk-focus-color, #0071e3)` outline, white bg, black text
-- Use: Play/pause, carousel arrows
+**Large Pill (Navigation)**
+- Background: transparent or `#171717`
+- Radius: 64px–100px
+- Use: Tab navigation, section selectors
 
 ### Cards & Containers
-- Background: `#f5f5f7` (light) or `#272729`-`#2a2a2d` (dark)
-- Border: none (borders are rare in Apple's system)
-- Radius: 5px-8px
-- Shadow: `rgba(0, 0, 0, 0.22) 3px 5px 30px 0px` for elevated product cards
-- Content: centered, generous padding
-- Hover: no standard hover state — cards are static, links within them are interactive
+- Background: `#ffffff`
+- Border: via shadow — `rgba(0, 0, 0, 0.08) 0px 0px 0px 1px`
+- Radius: 8px (standard), 12px (featured/image cards)
+- Shadow stack: `rgba(0,0,0,0.08) 0px 0px 0px 1px, rgba(0,0,0,0.04) 0px 2px 2px, #fafafa 0px 0px 0px 1px`
+- Image cards: `1px solid #ebebeb` with 12px top radius
+- Hover: subtle shadow intensification
+
+### Inputs & Forms
+- Radio: standard styling with focus `var(--ds-gray-200)` background
+- Focus shadow: `1px 0 0 0 var(--ds-gray-alpha-600)`
+- Focus outline: `2px solid var(--ds-focus-color)` — consistent blue focus ring
+- Border: via shadow technique, not traditional border
 
 ### Navigation
-- Background: `rgba(0, 0, 0, 0.8)` (translucent dark) with `backdrop-filter: saturate(180%) blur(20px)`
-- Height: 48px (compact)
-- Text: `#ffffff` at 12px, weight 400
-- Active: underline on hover
-- Logo: Apple logomark (SVG) centered or left-aligned, 17x48px viewport
-- Mobile: collapses to hamburger with full-screen overlay menu
-- The nav floats above content, maintaining its dark translucent glass regardless of section background
+- Clean horizontal nav on white, sticky
+- Vercel logotype left-aligned, 262x52px
+- Links: Geist 14px weight 500, `#171717` text
+- Active: weight 600 or underline
+- CTA: dark pill buttons ("Start Deploying", "Contact Sales")
+- Mobile: hamburger menu collapse
+- Product dropdowns with multi-level menus
 
 ### Image Treatment
-- Products on solid-color fields (black or white) — no backgrounds, no context, just the object
-- Full-bleed section images that span the entire viewport width
-- Product photography at extremely high resolution with subtle shadows
-- Lifestyle images confined to rounded-corner containers (12px+ radius)
+- Product screenshots with `1px solid #ebebeb` border
+- Top-rounded images: `12px 12px 0px 0px` radius
+- Dashboard/code preview screenshots dominate feature sections
+- Soft gradient backgrounds behind hero images (pastel multi-color)
 
 ### Distinctive Components
 
-**Product Hero Module**
-- Full-viewport-width section with solid background (black or `#f5f5f7`)
-- Product name as the primary headline (SF Pro Display, 56px, weight 600)
-- One-line descriptor below in lighter weight
-- Two pill CTAs side by side: "Learn more" (outline) and "Buy" / "Shop" (filled)
+**Workflow Pipeline**
+- Three-step horizontal pipeline: Develop → Preview → Ship
+- Each step has its own accent color: Blue → Pink → Red
+- Connected with lines/arrows
+- The visual metaphor for Vercel's core value proposition
 
-**Product Grid Tile**
-- Square or near-square card on contrasting background
-- Product image dominating 60-70% of the tile
-- Product name + one-line description below
-- "Learn more" and "Shop" link pair at bottom
+**Trust Bar / Logo Grid**
+- Company logos (Perplexity, ChatGPT, Cursor, etc.) in grayscale
+- Horizontal scroll or grid layout
+- Subtle `#ebebeb` border separation
 
-**Feature Comparison Strip**
-- Horizontal scroll of product variants
-- Each variant as a vertical card with image, name, and key specs
-- Minimal chrome — the products speak for themselves
+**Metric Cards**
+- Large number display (e.g., "10x faster")
+- Geist 48px weight 600 for the metric
+- Description below in gray body text
+- Shadow-bordered card container
 
 ## 5. Layout Principles
 
 ### Spacing System
 - Base unit: 8px
-- Scale: 2px, 4px, 5px, 6px, 7px, 8px, 9px, 10px, 11px, 14px, 15px, 17px, 20px, 24px
-- Notable characteristic: the scale is dense at small sizes (2-11px) with granular 1px increments, then jumps in larger steps. This allows precise micro-adjustments for typography and icon alignment.
+- Scale: 1px, 2px, 3px, 4px, 5px, 6px, 8px, 10px, 12px, 14px, 16px, 32px, 36px, 40px
+- Notable gap: jumps from 16px to 32px — no 20px or 24px in primary scale
 
 ### Grid & Container
-- Max content width: approximately 980px (the recurring "980px radius" in pill buttons echoes this width)
-- Hero: full-viewport-width sections with centered content block
-- Product grids: 2-3 column layouts within centered container
-- Single-column for hero moments — one product, one message, full attention
-- No visible grid lines or gutters — spacing creates implied structure
+- Max content width: approximately 1200px
+- Hero: centered single-column with generous top padding
+- Feature sections: 2–3 column grids for cards
+- Full-width dividers using `border-bottom: 1px solid #171717`
+- Code/dashboard screenshots as full-width or contained with border
 
 ### Whitespace Philosophy
-- **Cinematic breathing room**: Each product section occupies a full viewport height (or close to it). The whitespace between products is not empty — it is the pause between scenes in a film.
-- **Vertical rhythm through color blocks**: Rather than using spacing alone to separate sections, Apple uses alternating background colors (black, `#f5f5f7`, white). Each color change signals a new "scene."
-- **Compression within, expansion between**: Text blocks are tightly set (negative letter-spacing, tight line-heights) while the space surrounding them is vast. This creates a tension between density and openness.
+- **Gallery emptiness**: Massive vertical padding between sections (80px–120px+). The white space IS the design — it communicates that Vercel has nothing to prove and nothing to hide.
+- **Compressed text, expanded space**: The aggressive negative letter-spacing on headlines is counterbalanced by generous surrounding whitespace. The text is dense; the space around it is vast.
+- **Section rhythm**: White sections alternate with white sections — there's no color variation between sections. Separation comes from borders (shadow-borders) and spacing alone.
 
 ### Border Radius Scale
-- Micro (5px): Small containers, link tags
-- Standard (8px): Buttons, product cards, image containers
-- Comfortable (11px): Search inputs, filter buttons
-- Large (12px): Feature panels, lifestyle image containers
-- Full Pill (980px): CTA links ("Learn more", "Shop"), navigation pills
-- Circle (50%): Media controls (play/pause, arrows)
+- Micro (2px): Inline code snippets, small spans
+- Subtle (4px): Small containers
+- Standard (6px): Buttons, links, functional elements
+- Comfortable (8px): Cards, list items
+- Image (12px): Featured cards, image containers (top-rounded)
+- Large (64px): Tab navigation pills
+- XL (100px): Large navigation links
+- Full Pill (9999px): Badges, status pills, tags
+- Circle (50%): Menu toggle, avatar containers
 
 ## 6. Depth & Elevation
 
 | Level | Treatment | Use |
 |-------|-----------|-----|
-| Flat (Level 0) | No shadow, solid background | Standard content sections, text blocks |
-| Navigation Glass | `backdrop-filter: saturate(180%) blur(20px)` on `rgba(0,0,0,0.8)` | Sticky navigation bar — the glass effect |
-| Subtle Lift (Level 1) | `rgba(0, 0, 0, 0.22) 3px 5px 30px 0px` | Product cards, floating elements |
-| Media Control | `rgba(210, 210, 215, 0.64)` background with scale transforms | Play/pause buttons, carousel controls |
-| Focus (Accessibility) | `2px solid #0071e3` outline | Keyboard focus on all interactive elements |
+| Flat (Level 0) | No shadow | Page background, text blocks |
+| Ring (Level 1) | `rgba(0,0,0,0.08) 0px 0px 0px 1px` | Shadow-as-border for most elements |
+| Light Ring (Level 1b) | `rgb(235,235,235) 0px 0px 0px 1px` | Lighter ring for tabs, images |
+| Subtle Card (Level 2) | Ring + `rgba(0,0,0,0.04) 0px 2px 2px` | Standard cards with minimal lift |
+| Full Card (Level 3) | Ring + Subtle + `rgba(0,0,0,0.04) 0px 8px 8px -8px` + inner `#fafafa` ring | Featured cards, highlighted panels |
+| Focus (Accessibility) | `2px solid hsla(212, 100%, 48%, 1)` outline | Keyboard focus on all interactive elements |
 
-**Shadow Philosophy**: Apple uses shadow extremely sparingly. The primary shadow (`3px 5px 30px` with 0.22 opacity) is soft, wide, and offset — mimicking a diffused studio light casting a natural shadow beneath a physical object. This reinforces the "product as physical sculpture" metaphor. Most elements have NO shadow at all; elevation comes from background color contrast (dark card on darker background, or light card on slightly different gray).
+**Shadow Philosophy**: Vercel has arguably the most sophisticated shadow system in modern web design. Rather than using shadows for elevation in the traditional Material Design sense, Vercel uses multi-value shadow stacks where each layer has a distinct architectural purpose: one creates the "border" (0px spread, 1px), another adds ambient softness (2px blur), another handles depth at distance (8px blur with negative spread), and an inner ring (`#fafafa`) creates the subtle highlight that makes the card "glow" from within. This layered approach means cards feel built, not floating.
 
 ### Decorative Depth
-- Navigation glass: the translucent, blurred navigation bar is the most recognizable depth element, creating a sense of floating UI above scrolling content
-- Section color transitions: depth is implied by the alternation between black and light gray sections rather than by shadows
-- Product photography shadows: the products themselves cast shadows in their photography, so the UI doesn't need to add synthetic ones
+- Hero gradient: soft, pastel multi-color gradient wash behind hero content (barely visible, atmospheric)
+- Section borders: `1px solid #171717` (full dark line) between major sections
+- No background color variation — depth comes entirely from shadow layering and border contrast
 
 ## 7. Do's and Don'ts
 
 ### Do
-- Use SF Pro Display at 20px+ and SF Pro Text below 20px — respect the optical sizing boundary
-- Apply negative letter-spacing at all text sizes (not just headlines) — Apple tracks tight universally
-- Use Apple Blue (`#0071e3`) ONLY for interactive elements — it must be the singular accent
-- Alternate between black and light gray (`#f5f5f7`) section backgrounds for cinematic rhythm
-- Use 980px pill radius for CTA links — the signature Apple link shape
-- Keep product imagery on solid-color fields with no competing visual elements
-- Use the translucent dark glass (`rgba(0,0,0,0.8)` + blur) for sticky navigation
-- Compress headline line-heights to 1.07-1.14 — Apple headlines are famously tight
+- Use Geist Sans with aggressive negative letter-spacing at display sizes (-2.4px to -2.88px at 48px)
+- Use shadow-as-border (`0px 0px 0px 1px rgba(0,0,0,0.08)`) instead of traditional CSS borders
+- Enable `"liga"` on all Geist text — ligatures are structural, not optional
+- Use the three-weight system: 400 (body), 500 (UI), 600 (headings)
+- Apply workflow accent colors (Red/Pink/Blue) only in their workflow context
+- Use multi-layer shadow stacks for cards (border + elevation + ambient + inner highlight)
+- Keep the color palette achromatic — grays from `#171717` to `#ffffff` are the system
+- Use `#171717` instead of `#000000` for primary text — the micro-warmth matters
 
 ### Don't
-- Don't introduce additional accent colors — the entire chromatic budget is spent on blue
-- Don't use heavy shadows or multiple shadow layers — Apple's shadow system is one soft diffused shadow or nothing
-- Don't use borders on cards or containers — Apple almost never uses visible borders (except on specific buttons)
-- Don't apply wide letter-spacing to SF Pro — it is designed to run tight at every size
-- Don't use weight 800 or 900 — the maximum is 700 (bold), and even that is rare
-- Don't add textures, patterns, or gradients to backgrounds — solid colors only
-- Don't make the navigation opaque — the glass blur effect is essential to the Apple UI identity
-- Don't center-align body text — Apple body copy is left-aligned; only headlines center
-- Don't use rounded corners larger than 12px on rectangular elements (980px is for pills only)
+- Don't use positive letter-spacing on Geist Sans — it's always negative or zero
+- Don't use weight 700 (bold) on body text — 600 is the maximum, used only for headings
+- Don't use traditional CSS `border` on cards — use the shadow-border technique
+- Don't introduce warm colors (oranges, yellows, greens) into the UI chrome
+- Don't apply the workflow accent colors (Ship Red, Preview Pink, Develop Blue) decoratively
+- Don't use heavy shadows (> 0.1 opacity) — the shadow system is whisper-level
+- Don't increase body text letter-spacing — Geist is designed to run tight
+- Don't use pill radius (9999px) on primary action buttons — pills are for badges/tags only
+- Don't skip the inner `#fafafa` ring in card shadows — it's the glow that makes the system work
 
 ## 8. Responsive Behavior
 
 ### Breakpoints
 | Name | Width | Key Changes |
 |------|-------|-------------|
-| Small Mobile | <360px | Minimum supported, single column |
-| Mobile | 360-480px | Standard mobile layout |
-| Mobile Large | 480-640px | Wider single column, larger images |
-| Tablet Small | 640-834px | 2-column product grids begin |
-| Tablet | 834-1024px | Full tablet layout, expanded nav |
-| Desktop Small | 1024-1070px | Standard desktop layout begins |
-| Desktop | 1070-1440px | Full layout, max content width |
-| Large Desktop | >1440px | Centered with generous margins |
+| Mobile Small | <400px | Tight single column, minimal padding |
+| Mobile | 400–600px | Standard mobile, stacked layout |
+| Tablet Small | 600–768px | 2-column grids begin |
+| Tablet | 768–1024px | Full card grids, expanded padding |
+| Desktop Small | 1024–1200px | Standard desktop layout |
+| Desktop | 1200–1400px | Full layout, maximum content width |
+| Large Desktop | >1400px | Centered, generous margins |
 
 ### Touch Targets
-- Primary CTAs: 8px 15px padding creating ~44px touch height
-- Navigation links: 48px height with adequate spacing
-- Media controls: 50% radius circular buttons, minimum 44x44px
-- "Learn more" pills: generous padding for comfortable tapping
+- Buttons use comfortable padding (8px–16px vertical)
+- Navigation links at 14px with adequate spacing
+- Pill badges have 10px horizontal padding for tap targets
+- Mobile menu toggle uses 50% radius circular button
 
 ### Collapsing Strategy
-- Hero headlines: 56px Display → 40px → 28px on mobile, maintaining tight line-height proportionally
-- Product grids: 3-column → 2-column → single column stacked
-- Navigation: full horizontal nav → compact mobile menu (hamburger)
-- Product hero modules: full-bleed maintained at all sizes, text scales down
-- Section backgrounds: maintain full-width color blocks at all breakpoints — the cinematic rhythm never breaks
-- Image sizing: products scale proportionally, never crop — the product silhouette is sacred
+- Hero: display 48px → scales down, maintains negative tracking proportionally
+- Navigation: horizontal links + CTAs → hamburger menu
+- Feature cards: 3-column → 2-column → single column stacked
+- Code screenshots: maintain aspect ratio, may horizontally scroll
+- Trust bar logos: grid → horizontal scroll
+- Footer: multi-column → stacked single column
+- Section spacing: 80px+ → 48px on mobile
 
 ### Image Behavior
-- Product photography maintains aspect ratio at all breakpoints
-- Hero product images scale down but stay centered
-- Full-bleed section backgrounds persist at every size
-- Lifestyle images may crop on mobile but maintain their rounded corners
-- Lazy loading for below-fold product images
+- Dashboard screenshots maintain border treatment at all sizes
+- Hero gradient softens/simplifies on mobile
+- Product screenshots use responsive images with consistent border radius
+- Full-width sections maintain edge-to-edge treatment
 
 ## 9. Agent Prompt Guide
 
 ### Quick Color Reference
-- Primary CTA: Apple Blue (`#0071e3`)
-- Page background (light): `#f5f5f7`
-- Page background (dark): `#000000`
-- Heading text (light): `#1d1d1f`
-- Heading text (dark): `#ffffff`
-- Body text: `rgba(0, 0, 0, 0.8)` on light, `#ffffff` on dark
-- Link (light bg): `#0066cc`
-- Link (dark bg): `#2997ff`
-- Focus ring: `#0071e3`
-- Card shadow: `rgba(0, 0, 0, 0.22) 3px 5px 30px 0px`
+- Primary CTA: Vercel Black (`#171717`)
+- Background: Pure White (`#ffffff`)
+- Heading text: Vercel Black (`#171717`)
+- Body text: Gray 600 (`#4d4d4d`)
+- Border (shadow): `rgba(0, 0, 0, 0.08) 0px 0px 0px 1px`
+- Link: Link Blue (`#0072f5`)
+- Focus ring: Focus Blue (`hsla(212, 100%, 48%, 1)`)
 
 ### Example Component Prompts
-- "Create a hero section on black background. Headline at 56px SF Pro Display weight 600, line-height 1.07, letter-spacing -0.28px, color white. One-line subtitle at 21px SF Pro Display weight 400, line-height 1.19, color white. Two pill CTAs: 'Learn more' (transparent bg, white text, 1px solid white border, 980px radius) and 'Buy' (Apple Blue #0071e3 bg, white text, 8px radius, 8px 15px padding)."
-- "Design a product card: #f5f5f7 background, 8px border-radius, no border, no shadow. Product image top 60% of card on solid background. Title at 28px SF Pro Display weight 400, letter-spacing 0.196px, line-height 1.14. Description at 14px SF Pro Text weight 400, color rgba(0,0,0,0.8). 'Learn more' and 'Shop' links in #0066cc at 14px."
-- "Build the Apple navigation: sticky, 48px height, background rgba(0,0,0,0.8) with backdrop-filter: saturate(180%) blur(20px). Links at 12px SF Pro Text weight 400, white text. Apple logo left, links centered, search and bag icons right."
-- "Create an alternating section layout: first section black bg with white text and centered product image, second section #f5f5f7 bg with #1d1d1f text. Each section near full-viewport height with 56px headline and two pill CTAs below."
-- "Design a 'Learn more' link: text #0066cc on light bg or #2997ff on dark bg, 14px SF Pro Text, underline on hover. After the text, include a right-arrow chevron character (>). Wrap in a container with 980px border-radius for pill shape when used as a standalone CTA."
+- "Create a hero section on white background. Headline at 48px Geist weight 600, line-height 1.00, letter-spacing -2.4px, color #171717. Subtitle at 20px Geist weight 400, line-height 1.80, color #4d4d4d. Dark CTA button (#171717, 6px radius, 8px 16px padding) and ghost button (white, shadow-border rgba(0,0,0,0.08) 0px 0px 0px 1px, 6px radius)."
+- "Design a card: white background, no CSS border. Use shadow stack: rgba(0,0,0,0.08) 0px 0px 0px 1px, rgba(0,0,0,0.04) 0px 2px 2px, #fafafa 0px 0px 0px 1px. Radius 8px. Title at 24px Geist weight 600, letter-spacing -0.96px. Body at 16px weight 400, #4d4d4d."
+- "Build a pill badge: #ebf5ff background, #0068d6 text, 9999px radius, 0px 10px padding, 12px Geist weight 500."
+- "Create navigation: white sticky header. Geist 14px weight 500 for links, #171717 text. Dark pill CTA 'Start Deploying' right-aligned. Shadow-border on bottom: rgba(0,0,0,0.08) 0px 0px 0px 1px."
+- "Design a workflow section showing three steps: Develop (text color #0a72ef), Preview (#de1d8d), Ship (#ff5b4f). Each step: 14px Geist Mono uppercase label + 24px Geist weight 600 title + 16px weight 400 description in #4d4d4d."
 
 ### Iteration Guide
-1. Every interactive element gets Apple Blue (`#0071e3`) — no other accent colors
-2. Section backgrounds alternate: black for immersive moments, `#f5f5f7` for informational moments
-3. Typography optical sizing: SF Pro Display at 20px+, SF Pro Text below — never mix
-4. Negative letter-spacing at all sizes: -0.28px at 56px, -0.374px at 17px, -0.224px at 14px, -0.12px at 12px
-5. The navigation glass effect (translucent dark + blur) is non-negotiable — it defines the Apple web experience
-6. Products always appear on solid color fields — never on gradients, textures, or lifestyle backgrounds in hero modules
-7. Shadow is rare and always soft: `3px 5px 30px 0.22 opacity` or nothing at all
-8. Pill CTAs use 980px radius — this creates the signature Apple rounded-rectangle-that-looks-like-a-capsule shape
+1. Always use shadow-as-border instead of CSS border — `0px 0px 0px 1px rgba(0,0,0,0.08)` is the foundation
+2. Letter-spacing scales with font size: -2.4px at 48px, -1.28px at 32px, -0.96px at 24px, normal at 14px
+3. Three weights only: 400 (read), 500 (interact), 600 (announce)
+4. Color is functional, never decorative — workflow colors (Red/Pink/Blue) mark pipeline stages only
+5. The inner `#fafafa` ring in card shadows is what gives Vercel cards their subtle inner glow
+6. Geist Mono uppercase for technical labels, Geist Sans for everything else